From b5f4e686359d8842b329e6b161ef89fa6c04ebc3 Mon Sep 17 00:00:00 2001 From: Ludovic Courtès Date: Mon, 28 Apr 2014 23:07:08 +0200 Subject: services: Rewrite using gexps. * gnu/services.scm ()[inputs]: Remove. * gnu/system.scm (links): Remove. (etc-directory): Add PASSWD and SHADOW to #:inputs. (operating-system-boot-script): Pass ETC to 'dmd-configuration-file'. (operating-system-derivation): Remove EXTRAS from the union. * gnu/system/linux.scm (pam-service->configuration): Rewrite in terms of 'gexp->derivation'. Compute the contents on the build side. Expect 'arguments' to contain a list of gexps. (pam-services->directory): Rewrite in terms of 'gexp->derivation'. (unix-pam-service): Change 'arguments' to a list of one gexp. * gnu/system/shadow.scm ()[inputs]: Remove. [shell]: Change default value to a gexp. (passwd-file): Rewrite in terms of 'gexp->derivation'. Compute contents on the build side. * gnu/services/base.scm (host-name-service, mingetty-service, nscd-service, syslog-service, guix-service): Change 'start' and 'stop' to gexps; remove 'inputs' field. (guix-build-accounts): Change 'shell' field to a gexp. * gnu/services/networking.scm (static-networking-service): Change 'start' and 'stop' to gexps; remove 'inputs' field. * gnu/services/xorg.scm (slim-service): Likewise. * gnu/services/dmd.scm (dmd-configuration-file): Expect ETC to be a derivation. Change 'config' to a gexp. Use 'gexp->file' instead of 'text-file'. * doc/guix.texi (Defining Services): Update nscd example with gexps, and without 'inputs'. Add xref to "G-Expressions". --- gnu/services/base.scm | 60 +++++++++++++++++++++++++-------------------------- 1 file changed, 30 insertions(+), 30 deletions(-) (limited to 'gnu/services/base.scm') diff --git a/gnu/services/base.scm b/gnu/services/base.scm index 3145a657f8..9561995243 100644 --- a/gnu/services/base.scm +++ b/gnu/services/base.scm @@ -24,6 +24,7 @@ #:use-module ((gnu packages base) #:select (glibc-final)) #:use-module (gnu packages package-management) + #:use-module (guix gexp) #:use-module (guix monads) #:use-module (srfi srfi-1) #:use-module (srfi srfi-26) @@ -48,8 +49,8 @@ (return (service (documentation "Initialize the machine's host name.") (provision '(host-name)) - (start `(lambda _ - (sethostname ,name))) + (start #~(lambda _ + (sethostname #$name))) (respawn? #f))))) (define* (mingetty-service tty @@ -57,8 +58,7 @@ (motd (text-file "motd" "Welcome.\n")) (allow-empty-passwords? #t)) "Return a service to run mingetty on TTY." - (mlet %store-monad ((mingetty-bin (package-file mingetty "sbin/mingetty")) - (motd motd)) + (mlet %store-monad ((motd motd)) (return (service (documentation (string-append "Run mingetty on " tty ".")) @@ -68,10 +68,10 @@ ;; service to be done. (requirement '(host-name)) - (start `(make-forkexec-constructor ,mingetty-bin "--noclear" ,tty)) - (stop `(make-kill-destructor)) - (inputs `(("mingetty" ,mingetty) - ("motd" ,motd))) + (start #~(make-forkexec-constructor + (string-append #$mingetty "/sbin/mingetty") + "--noclear" #$tty)) + (stop #~(make-kill-destructor)) (pam-services ;; Let 'login' be known to PAM. All the mingetty services will have @@ -83,16 +83,17 @@ (define* (nscd-service #:key (glibc glibc-final)) "Return a service that runs libc's name service cache daemon (nscd)." - (mlet %store-monad ((nscd (package-file glibc "sbin/nscd"))) + (with-monad %store-monad (return (service (documentation "Run libc's name service cache daemon (nscd).") (provision '(nscd)) - (start `(make-forkexec-constructor ,nscd "-f" "/dev/null" - "--foreground")) - (stop `(make-kill-destructor)) + (start + #~(make-forkexec-constructor (string-append #$glibc "/sbin/nscd") + "-f" "/dev/null" + "--foreground")) + (stop #~(make-kill-destructor)) - (respawn? #f) - (inputs `(("glibc" ,glibc))))))) + (respawn? #f))))) (define (syslog-service) "Return a service that runs 'syslogd' with reasonable default settings." @@ -120,17 +121,17 @@ ") (mlet %store-monad - ((syslog.conf (text-file "syslog.conf" contents)) - (syslogd (package-file inetutils "libexec/syslogd"))) + ((syslog.conf (text-file "syslog.conf" contents))) (return (service (documentation "Run the syslog daemon (syslogd).") (provision '(syslogd)) - (start `(make-forkexec-constructor ,syslogd "--no-detach" - "--rcfile" ,syslog.conf)) - (stop `(make-kill-destructor)) - (inputs `(("inetutils" ,inetutils) - ("syslog.conf" ,syslog.conf))))))) + (start + #~(make-forkexec-constructor (string-append #$inetutils + "/libexec/syslogd") + "--no-detach" + "--rcfile" #$syslog.conf)) + (stop #~(make-kill-destructor)))))) (define* (guix-build-accounts count #:key (first-uid 30001) @@ -148,8 +149,7 @@ starting at FIRST-UID, and under GID." (gid gid) (comment (format #f "Guix Build User ~2d" n)) (home-directory "/var/empty") - (shell (package-file shadow "sbin/nologin")) - (inputs `(("shadow" ,shadow))))) + (shell #~(string-append #$shadow "/sbin/nologin")))) 1+ 1)))) @@ -157,16 +157,16 @@ starting at FIRST-UID, and under GID." (build-user-gid 30000) (build-accounts 10)) "Return a service that runs the build daemon from GUIX, and has BUILD-ACCOUNTS user accounts available under BUILD-USER-GID." - (mlet %store-monad ((daemon (package-file guix "bin/guix-daemon")) - (accounts (guix-build-accounts build-accounts + (mlet %store-monad ((accounts (guix-build-accounts build-accounts #:gid build-user-gid))) (return (service (provision '(guix-daemon)) - (start `(make-forkexec-constructor ,daemon - "--build-users-group" - ,builder-group)) - (stop `(make-kill-destructor)) - (inputs `(("guix" ,guix))) + (start + #~(make-forkexec-constructor (string-append #$guix + "/bin/guix-daemon") + "--build-users-group" + #$builder-group)) + (stop #~(make-kill-destructor)) (user-accounts accounts) (user-groups (list (user-group (name builder-group) -- cgit v1.2.3